OFFSET
0,4
LINKS
Paul Barry, Invariant number triangles, eigentriangles and Somos-4 sequences, arXiv preprint arXiv:1107.5490 [math.CO], 2011.
EXAMPLE
Triangle begins
1;
1, 1;
2, 1, 1;
6, 4, 1, 1;
23, 15, 6, 1, 1;
106, 68, 28, 8, 1, 1;
567, 365, 145, 45, 10, 1, 1;
3434, 2215, 877, 262, 66, 12, 1, 1;
23137, 14917, 5936, 1750, 427, 91, 14, 1, 1;
171174, 110324, 43936, 13020, 3108, 648, 120, 16, 1, 1;
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Paul Barry, Feb 10 2011
STATUS
approved